Validation of Male Pontella spinipes Giesbrecht, 1889 (Copepoda: Calanoida: Pontellidae) Based on Morphological and Mitochondrial COI Gene Sequence Analysis.
Validation of Male Pontella spinipes Giesbrecht, 1889 (Copepoda: Calanoida: Pontellidae) Based on Morphological and Mitochondrial COI Gene Sequence Analysis.
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基于形态学和线粒体 COI 基因序列分析的雄性 Pontella spinipes Giesbrecht，1889（桡足类：Calanoida：Pontellidae）的验证。
DOI：
10.6620/zs.2018.57-16
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发表时间：
2018
影响因子：
1.6
通讯作者：
S. Nandan
中科院分区：
文献类型：
--
作者：
Sanu V. Francis;S. Nishida;S. Nandan
Sanu Vengasseril弗朗西斯，Shuhei Nishida，and Sivasankaran Bijoy Nandan（2018）Pontellidae科的浮游桡足类- Pontella spinipes Giesbrecht，1889和P. diagonalis Wilson，1950，两者都是基于雌性标本首次描述的，在印度洋中表现出非常相似的形态和重叠的地理范围。虽然几位分类学家描述了每个物种的雄性，但在这两个物种中没有明确的证据证明雌性-雄性匹配（将同一物种的雌性和雄性联系起来）。在本研究中，对从阿拉伯海采集的标本中的线粒体细胞色素c氧化酶亚基I（mtCOI）序列的分析显示，雌性棘足裸腹鱼Giesbrecht，1889和雄性对角裸腹鱼塞拉斯和Pillai（1973）在遗传上是相同的，这为后者实际上是棘足裸腹鱼提供了证据。这些研究结果强调，有必要重新检查其他相关物种的雌性-雄性对应关系，以前仅基于形态学，使用分子遗传学分析，在本研究中应用。
Sanu Vengasseril Francis, Shuhei Nishida, and Sivasankaran Bijoy Nandan (2018) The neustonic copepods of the family Pontellidae - Pontella spinipes Giesbrecht, 1889 and P. diagonalis Wilson, 1950, both first described on the basis of female specimens exhibit very similar morphology and overlapping geographic ranges in the Indian Ocean. While several taxonomists have described males of each species, there has been no definitive evidence for female-male matching (link female and male of the same species) in the two species. In the present study, an analysis of mitochondrial cytochrome c oxidase subunit I (mtCOI) sequences in the specimens collected from the Arabian Sea revealed that female P. spinipes Giesbrecht, 1889, and male P. diagonalis sensu Silas and Pillai (1973) are genetically identical, providing evidence that the latter is actually P. spinipes. These findings emphasize that it is necessary to re-examine the female-male correspondence of other related species, formerly based on morphology alone, using molecular-genetic analysis as applied in the present study.